Registration Dossier

Environmental fate & pathways

Endpoint summary

Administrative data

Description of key information

Additional information

The distribution in a sewage treatment plant (STP) has been estimated using the SimpleTreat model (implemented in EUSES 2.1.2/Chesar 3.5), see table below. Due to the moderate hydrolysis of the registered substance, the distribution calculation is done for both the parent substance and the hydrolysis products, (3-thiocyanatopropyl)silanetriol and ethanol.

Table: Distribution modelling for STP

 

Triethoxy(3-thiocyanatopropyl)silane

(3-thiocyanatopropyl)silanetriol

Ethanol

 

 Fraction of emission directed to water by STP

99.68

99.97

12.62

[%]

Fraction of emission directed to air by STP

2.37E-3

2.66E-10

0.07

[%]

Fraction of emission directed to sludge by STP

0.313

0.025

0.069

[%]

Fraction of the emission degraded in STP

0

0

87.23

[%]

 

Triethoxy(3-thiocyanatopropyl)silane is not expected to undergo any significant biodegradation and is predicted to have low Henry’s Law constant and low log Kow/log Koc. Therefore, water is the main compartments to which it is expected to partition in a sewage treatment plant.

(3-Thiocyanatopropyl)silanetriol is predicted to have very low Henry's Law constant, low log Kow/log Koc. Therefore, water is the main compartment to which it is expected to partition in a sewage treatment plant.